Pick 630 if the number should read as Aurora.
The Illinois Commerce Commission names Aurora with Naperville, Wheaton, Elmhurst and Geneva.
The area codes for Aurora, Illinois are 630 and 331.
Area codes in Aurora, Illinois
Get a phone number with the right area code for Aurora, Illinois.
Aurora, Illinois is in 630, split from 708 in 1996, and in 331, laid over it in 2007. Both codes cover the western suburbs of Chicago.
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Pick 630 for Aurora, Illinois, or 331 if you want the code laid over it.
Pick 331 if the number should look newer.
331 entered service on October 7, 2007, the day dialing 1 plus all ten digits became mandatory for local calls here.
Pick 708 if the number is for the south suburbs.
The south suburbs kept 708 when 630 was split from it on August 3, 1996.
People filed 749 FCC complaints about unwanted calls from Aurora, Illinois area codes in 12 months.
From October 2025 to September 2026, 749 unwanted-call complaints filed with the FCC gave a caller ID number that started with 630 and 331. 630 was named most, on 707 of them (94%).
- 749unwanted-call complaints named a Aurora, Illinois code
- 630was named on the most of them, 707
- 94%of the Aurora, Illinois complaints named 630
Source: Federal Communications Commission, CGB - Consumer Complaints Data (dataset 3xyp-aqkj), issue "Unwanted Calls", read on November 4, 2026. Caller ID can be faked, so a code shows what appeared on the phone, not where the caller was.
This is how you get a Aurora, Illinois number.
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Type the code you picked.
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People ask these questions about Aurora, Illinois area codes.
More in the full FAQ.
No. Chicago itself uses 312, 773 and 872. Aurora is one of the western suburbs and uses 630 and 331.
DuPage County, southern Kane County and parts of Kendall County.
A local call in Aurora, Illinois is dialed with 1 plus ten digits, whichever of its codes the number starts with. The area code is part of every number you give out.
From October 2025 to September 2026, people filed 749 FCC complaints about unwanted calls from numbers that start with a Aurora, Illinois code: 630 (707) and 331 (42). A complaint is one person's report. Caller ID can be faked, so a code shows what appeared on the phone, not where the caller was.
Yes. You type the area code you want when you create a number, and you do not need to live in Aurora, Illinois. Calls ring the phone you already have, and texts land in your ExpressNumber inbox.
No. Your numbers are receive-only: they take calls and texts, and they never make them. You answer calls on your own phone, and you cannot reply to a text from the inbox.
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Codes around Aurora, Illinois
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Every fact on this page comes from public numbering records.
The codes, the places and the years are rows of the North American Numbering Plan Administrator's area code database, and the complaints are the FCC's own.
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